# Stewart Brand proclaims 4 environmental 'heresies'

The man who helped usher in the environmental movement in the 1960s and '70s has been rethinking his positions on cities, nuclear power, genetic modification and geo-engineering. This talk at the US State Department is a foretaste of his major new book, sure to provoke widespread debate.

- Kind: Talk
- Year: 2009
- Runtime: 16 min
- By: TED.com
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/StewartBrand_2009S)
- Licence or status: [CC BY-NC-ND 3.0](http://creativecommons.org/licenses/by-nc-nd/3.0/) (as the archive states it)
- Who can watch: Teens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/StewartBrand_2009S?play=1)